Mask, display module and display screen

Abstract

The application discloses a mask, a display module and a display screen, wherein a plurality of light transmission areas are arranged on the surface of the side of the mask away from the lamp plate of the module, the plurality of light transmission areas are arranged in one-to-one correspondence with a plurality of pixel points, and each light transmission area is arranged opposite to the light emitting side of the corresponding pixel point. The light transmission area is also provided with a preset proportion of light mixing diffusion particles, so that the light transmission area is arranged to mix light for the corresponding pixel point. According to the technical scheme, in the display process, it can ensure that each pixel point of the display module is fully mixed with light, so as to improve the display effect.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a face mask, display module and display screen. Background Technology

[0002] Currently, traditional small-pitch displays mainly use either integrated adhesive layer encapsulation or mask covering to protect the display surface of the module lamp board. However, in actual use, it has been found that regardless of whether integrated adhesive layer encapsulation or mask covering is used, when these small-pitch displays are used, they are prone to pixelation and unsmooth display due to insufficient light mixing of each pixel, which seriously affects their display effect. Utility Model Content

[0003] This application provides a mask, a display module, and a display screen, aiming to improve the technical problem that existing small-pitch LED display modules are prone to pixelation and unsmooth display due to insufficient light mixing of individual pixels, which affects the display effect.

[0004] Therefore, this application provides a module lamp board for use in a display module. The display module includes a module lamp board, and the display surface of the module lamp board is provided with a plurality of pixels. A mask is installed on the display surface to cover and protect the plurality of pixels. The side surface of the mask away from the module lamp board is provided with a plurality of light-transmitting areas. The plurality of light-transmitting areas are provided in a one-to-one correspondence with the plurality of pixels, and each light-transmitting area is directly opposite to the light-emitting side of the corresponding pixel. The light-transmitting area is also provided with a preset proportion of light-mixing and diffusion particles, so that the light-transmitting area is configured to mix light for the corresponding pixel.

[0005] Optionally, in some embodiments of this application, the light-diffusing particles are any one or more of silicon dioxide, titanium dioxide, and barium sulfate; and / or, The light-transmitting area is any one of polycarbonate colloid, polymethyl methacrylate colloid, resin colloid, and silicone colloid.

[0006] Optionally, in some embodiments of this application, the mass ratio or volume ratio of the light-diffusing particles in the corresponding light-transmitting region is 3% to 10%.

[0007] Optionally, in some embodiments of this application, the surface of the light-transmitting area is an arc-shaped structure or a planar structure.

[0008] Optionally, in some embodiments of this application, the surface of the mask away from the module light panel is further provided with a plurality of light blocking areas, each of the light-transmitting areas being located at least between two adjacent light blocking areas, and configured to absorb or block cross-light between adjacent pixels.

[0009] Optionally, in some embodiments of this application, the light blocking area is a U-shaped groove.

[0010] Optionally, in some embodiments of this application, the light-blocking region is any one of black polycarbonate colloid, black polymethyl methacrylate colloid, black resin colloid, and black silicone colloid.

[0011] Optionally, in some embodiments of this application, the side surface of the mask facing the module light panel is further provided with a plurality of recesses, the plurality of recesses being provided one-to-one with a plurality of pixels, and each recess being configured to cover and protect the corresponding pixel.

[0012] Furthermore, this application embodiment also provides a display module, the display module including a module light panel and a mask of any of the above, the mask having a plurality of limiting posts on one side surface facing the module light panel, the module light panel having a plurality of through holes through it along the thickness direction, the plurality of through holes corresponding one-to-one with the plurality of limiting posts, each limiting post having a heat-melting part at one end, the heat-melting part being configured to form a rivet-like structure under the heat-melting action after the corresponding limiting post passes through the corresponding through hole.

[0013] In addition, this application embodiment also provides a display screen, which includes at least one of the above-described module light panels.

[0014] The technical solution provided in this application, through the aforementioned structural arrangement, features a mask with several light-transmitting areas on its surface away from the module lamp board, each corresponding to a pixel on the module lamp board. Simultaneously, each light-transmitting area is equipped with a preset proportion of light-mixing and diffusing particles, ensuring that each light-transmitting area is configured to mix light with its corresponding pixel. Thus, the display module of this application can protect the pixels of its module lamp board while ensuring sufficient light mixing for each pixel during display, thereby improving its display effect. Therefore, this technical solution effectively addresses the technical problem of existing small-pitch LED display modules, which often suffer from insufficient light mixing, resulting in strong pixel graininess and unsmooth display images, thus affecting their display performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the first structure of the face mask in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of a second structure of the face mask in an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the third structure of the face mask in the embodiments of this application.

[0019] Figure 4 This is a schematic diagram of the first structure of the display module in the embodiments of this application.

[0020] Figure 5 This is a schematic diagram of a second structure of the display module in an embodiment of this application.

[0021] Figure label: 1. Display module; 10. Mask; 11. Light-transmitting area; 12. Light-blocking area; 13. Cavity; 14. Limiting post; 141. Hot melt section; 20. Module light board; 21. Pixel. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed in this application.

[0025] In one embodiment, such as Figure 1 As shown in the figure, this application embodiment provides a face mask 10. The surface of the face mask 10 away from the module lamp panel 20 is provided with a plurality of light-transmitting areas 11. Each of the light-transmitting areas 11 corresponds one-to-one with a plurality of pixels 21, and the light-emitting side of each light-transmitting area 11 is directly opposite to the light-emitting side of the corresponding pixel 21. The light-transmitting areas 11 are also provided with a preset proportion of light-mixing and diffusing particles, so that the light-transmitting areas 11 are configured to cause the corresponding pixels 21 to mix light.

[0026] It is understood that the mask 10 in this embodiment is mainly used in the display module 1, which generally includes a module lamp board 20. The display surface of the module lamp board 20 is provided with a plurality of pixels 21, so that the mask 10 is installed on the display surface to cover and protect the plurality of pixels 21 on the display surface. Generally speaking, each pixel 21 includes a red LED, a green LED and a blue LED. Therefore, the above-mentioned arrangement of each light-transmitting area 11 and the light-emitting side of the corresponding pixel 21 facing each other specifically means that the orthographic projection of each light-transmitting area 11 in the thickness direction of the mask 10 covers the light-emitting side of the corresponding pixel 21 (that is, the side surface of the corresponding red LED, green LED and blue LED away from the module lamp board 20). The light-diffusing particles mentioned above mainly refer to light that can scatter light and make the emitted light more uniform and soft. Through the scattering effect of these light-diffusing particles, each light-transmitting area 11 can not only mix the three primary colors (i.e., red LED beads, green LED beads, and blue LED beads) corresponding to its own pixel 21, but also mix the light between its corresponding pixel 21 and adjacent pixels 21, thereby effectively promoting the full mixing of the three primary color light of each pixel 21 and increasing the pixel ratio of the display module 1.

[0027] In this way, the mask 10 of this embodiment, through the above-described structural configuration, has several light-transmitting areas 11 on its surface away from the module lamp board 20, each corresponding to a plurality of pixels 21 on the module lamp board 20. Furthermore, each light-transmitting area 11 is provided with a preset proportion of light-mixing and diffusing particles, ensuring that each light-transmitting area 11 is configured to mix light with the corresponding pixel 21. Thus, the display module 1 of this application can protect the pixels 21 of its module lamp board 20 by the mask 10, while ensuring sufficient light mixing for each pixel 21 during display, thereby improving its display effect.

[0028] In some examples, the light-mixing and diffusion particles can be any one or more of silicon dioxide, titanium dioxide, and barium sulfate. This allows the high hardness, good heat resistance, excellent chemical stability, and resistance to yellowing of inorganic particles such as silicon dioxide, titanium dioxide, and barium sulfate to be utilized. This enables each light-transmitting area 11 to have strong light-mixing capabilities while minimizing impact on its light transmission performance, thus ensuring that each light-transmitting area 11 effectively promotes light mixing at its corresponding pixel 21.

[0029] In some examples, such as Figure 1 As shown, the light-transmitting area 11 is specifically any one of polycarbonate colloid, polymethyl methacrylate colloid, resin colloid, and silicone colloid. In this way, the good light-transmitting properties of transparent colloids such as polycarbonate colloid, polymethyl methacrylate colloid, resin colloid, and silicone colloid can be utilized to ensure that each light-transmitting area 11 can provide appropriate cover protection for the corresponding pixel 21 while minimizing any impact on the light-transmitting properties of each area 11.

[0030] In some examples, the mass ratio or volume ratio of the light-mixing diffusion particles in the corresponding light-transmitting area 11 is 3% to 10%. Thus, by setting the light-mixing diffusion particles in the above proportion, each light-transmitting area 11 can have a strong light-mixing ability, so that each light-transmitting area 11 can effectively promote the light mixing of the corresponding pixel 21, while ensuring that the impact of the light-mixing diffusion particles on the light transmission performance of each light-transmitting area 11 is minimized.

[0031] In some examples, such as Figure 1 As shown, the surface of the light-transmitting area 11 is either curved or flat. Thus, with the above structural configuration, a mask 10 with a wavy, raised structure or a flat structure can be formed respectively. Furthermore, compared to the light-transmitting area 11 with a flat structure, the light-transmitting area 11 with a curved structure not only possesses the same technical effects as the light-transmitting area 11 with a flat structure, but also has the effects of focusing and brightening light and minimizing seams.

[0032] In some examples, such as Figure 2 and Figure 3 As shown, the surface of the mask 10 away from the module lamp board 20 is also provided with a plurality of light blocking areas 12. Each light-transmitting area 11 is located at least between two adjacent light blocking areas 12 and is configured to absorb or block cross-light between adjacent pixels 21. In this way, the structure of the light blocking areas 12 can reduce the cross-light problem between pixels 21 of the module lamp board 20, thereby further improving the display effect of the corresponding display module 1. In addition, the structure of the light blocking areas 12 can also improve the contrast of the corresponding display module 1 and reduce the effect of splicing dark lines, thereby further improving the display uniformity and visual effect of the corresponding display module 1.

[0033] In some examples, such as Figure 2 As shown, the light blocking area 12 can specifically be a U-shaped groove. In this way, the total internal reflection effect formed by the U-shaped groove can enable each light blocking area 12 to better block cross-light between adjacent pixels 21.

[0034] In some examples, such as Figure 3 As shown, the light-blocking region 12 can specifically be any one of black polycarbonate colloid, black polymethyl methacrylate colloid, black resin colloid, and black silicone colloid. Thus, the high light absorption properties of black colloids such as black polycarbonate colloid, black polymethyl methacrylate colloid, black resin colloid, and black silicone colloid allow for better absorption of cross-light between adjacent pixels 21.

[0035] It should be noted that, in this example, the light blocking area 12 can be formed by first hollowing out the corresponding position to form a corresponding groove, and then filling the groove with the aforementioned black colloid to form the corresponding light blocking area 12.

[0036] In some examples, such as Figures 1 to 3 As shown, the surface of the mask 10 facing the module light panel 20 is also provided with a plurality of recesses 13, each recess 13 corresponding to a plurality of pixels 21, and each recess 13 is configured to cover and protect the corresponding pixel 21. In this way, with the above structural configuration, when the mask 10 is installed on the display surface of the module light panel 20, each pixel 21 on the display surface can be accommodated in the corresponding recess 13 for better sealing and protection.

[0037] In addition, such as Figures 1 to 3 As shown, in order to facilitate the connection and fixation between the face mask 10 and the module light panel 20, a number of limiting posts 14 are also provided on the side surface of the face mask 10 facing the module light panel 20.

[0038] In one embodiment, such as Figure 4 and Figure 5 This application embodiment also provides a display module 1, which specifically includes a module light panel 20 and a face mask 10 as described in the above embodiment. The face mask 10 has a plurality of limiting posts 14 on its surface facing the module light panel 20. The module light panel 20 also has a plurality of through holes extending along its thickness direction, with each through hole corresponding to one of the limiting posts 14. Each limiting post 14 has a heat-melting portion 141 at one end. The heat-melting portion 141 is configured to form a heat-melting effect after the corresponding limiting post 14 passes through the corresponding through hole. Figure 4 or Figure 5 The rivet-like structure shown.

[0039] It is understood that the display module 1 in this embodiment can be used for standalone display, i.e., a single display module 1 can be used as a display screen, or several display modules 1 can be arranged in a certain way to form a corresponding display screen. The display module 1 in this embodiment can be designed with or without a bottom shell. When it is designed with a bottom shell, in addition to the module lamp plate 20 and the mask 10, it also includes a module bottom shell, which is installed on the surface of the module lamp plate 20 away from the mask 10. The number of the aforementioned limiting posts 14 is preferably greater than or equal to four to ensure a more stable connection between the mask 10 and the module lamp plate 20. Meanwhile, the length of each limiting post 14 should be 0.2 mm to 0.5 mm greater than the thickness of the module light panel 20 (i.e., the extension length of each through hole), so that after each limiting post 14 passes through the corresponding through hole, the heat-fused part 141 on each limiting post 14 can protrude from the surface of the module light panel 20 away from the face mask 10, so as to facilitate the corresponding heat-fused operation on the heat-fused part 141. Preferably, the limiting post 14 can be a cylinder or a prism to ensure that its heat-fused part 141 can form a reliable mechanical connection structure after heat fusion.

[0040] Thus, since the display module 1 in this embodiment adopts the module light board 20 in the above embodiment, it has the same function and technical effect as the above embodiment, which will not be repeated here.

[0041] In one embodiment, this application also provides a display screen, which may specifically include at least one display module 1 as described in the above embodiments.

[0042] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A face mask, applied in a display module, the display module including a module lamp board, the display surface of the module lamp board being provided with a plurality of pixels, the face mask being mounted on the display surface to cover and protect the plurality of pixels, characterized in that, The mask has several light-transmitting areas on the side away from the module light panel. Each of the light-transmitting areas corresponds to a certain number of pixels, and each light-transmitting area is directly opposite the light-emitting side of the corresponding pixel. The light-transmitting area is also provided with a preset proportion of light-mixing and diffusion particles, so that the light-transmitting area is configured to mix light for the corresponding pixel.

2. The face mask according to claim 1, characterized in that, The light-diffusing particles are any one or more of silicon dioxide, titanium dioxide, and barium sulfate; and / or, The light-transmitting area is any one of polycarbonate colloid, polymethyl methacrylate colloid, resin colloid, and silicone colloid.

3. The face mask according to claim 1, characterized in that, The mass ratio or volume ratio of the light-diffusing particles in the corresponding light-transmitting region is 3% to 10%.

4. The face mask according to claim 1, characterized in that, The surface of the light-transmitting area is either curved or planar.

5. The face mask according to claim 1, characterized in that, The surface of the mask away from the module light panel is also provided with a number of light blocking areas. Each light-transmitting area is located between at least two adjacent light blocking areas and is configured to absorb or block cross-light between adjacent pixels.

6. The face mask according to claim 5, characterized in that, The light blocking area is a U-shaped groove.

7. The face mask according to claim 5, characterized in that, The light-blocking region is any one of black polycarbonate colloid, black polymethyl methacrylate colloid, black resin colloid, and black silicone colloid.

8. The face mask according to any one of claims 1-7, characterized in that, The surface of the mask facing the module light panel is also provided with a plurality of recesses, and the plurality of recesses are provided one-to-one with the plurality of pixels, and each recess is configured to cover and protect the corresponding pixel.

9. A display module, characterized in that, The display module includes a module light panel and a mask as described in any one of claims 1-8. The mask is further provided with a plurality of limiting posts on one side surface facing the module light panel. The module light panel is further provided with a plurality of through holes along the thickness direction. The plurality of through holes are provided in a one-to-one correspondence with the plurality of limiting posts. Each limiting post is provided with a heat-melting part at one end. The heat-melting part is configured to form a rivet-like structure under the action of heat melting after the corresponding limiting post passes through the corresponding through hole.

10. A display screen, characterized in that, The display screen includes at least one module light panel as described in claim 9.

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